[ovs-dev] [PATCH v3] netdev-vport : Fix userspace tunnel ioctl(SIOCGIFINDEX) info logs.

lin huang miterv at outlook.com
Wed Nov 24 13:32:41 UTC 2021

From: linhuang <linhuang at ruijie.com.cn>

Userspace tunnel doesn't have a valid device in the kernel. So
get_ifindex() function (ioctl) always get error during
adding a port, deleting a port or updating a port status.

The info log is
on vxlan_sys_4789 device failed: No such device"

If there are a lot of userspace tunnel ports on a bridge, the
iface_refresh_netdev_status() function will spend a lot of time.

So ignore userspace tunnel port ioctl(SIOCGIFINDEX) operation, just
return -ENODEV.

Signed-off-by: Lin Huang <linhuang at ruijie.com.cn>
Test-by: Mike Pattrick <mkp at redhat.com>
Reviewed-by: Aaron Conole <aconole at redhat.com>
Reviewed-by: Ilya Maximets <i.maximets at ovn.org>
 lib/netdev-vport.c | 4 +++-
 vswitchd/bridge.c  | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/netdev-vport.c b/lib/netdev-vport.c
index 499c029..f0ff02b 100644
--- a/lib/netdev-vport.c
+++ b/lib/netdev-vport.c
@@ -1151,8 +1151,10 @@ netdev_vport_get_ifindex(const struct netdev *netdev_)
     const char *name = netdev_vport_get_dpif_port(netdev_, buf, sizeof(buf));
+    const char *dpif_type = netdev_get_dpif_type(netdev_);

-    return linux_get_ifindex(name);
+    return (dpif_type && !strcmp(dpif_type, "system")
+            ? linux_get_ifindex(name) : -ENODEV);

 #define NETDEV_VPORT_GET_IFINDEX netdev_vport_get_ifindex
diff --git a/vswitchd/bridge.c b/vswitchd/bridge.c
index 5223aa8..513ef7e 100644
--- a/vswitchd/bridge.c
+++ b/vswitchd/bridge.c
@@ -2052,6 +2052,8 @@ iface_do_create(const struct bridge *br,
         goto error;

+    netdev_set_dpif_type(netdev, br->ofproto->type);
     error = iface_set_netdev_config(iface_cfg, netdev, errp);
     if (error) {
         goto error;

More information about the dev mailing list